Manuscript Summary: During the entire middle ages in the occident, the texts of Aristotle and Boethius were well circulated and inspired a large number of thinkers. These two great philosophers are brought together in this volume, written in a variety of different hands. The first portion, which can be dated sometime in the 11th or 12th century, contains the works of Aristotle. It also includes an extremely interesting schema (fol. 27) and initials accented in green and decorated with scrollwork. The text of Boethius, which is dated somewhat later, was copied during the 12th century. In this text one also finds some contemporaneous corrections as well as glosses from the 14th century. (jos)